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Cosmic Dust Particles

Facts for Prelims (FFP)


Source: PIB

 Context: Indian scientists (from the Indian Institute of Astrophysics) have created a computer model of cosmic dust particles that can imitate the unique way interstellar comet 2I/Borisov scatters light.


Use: By studying the way light scatters off these cosmic particles, they can better understand how comets behave. The model accurately reproduced the scattering of light seen in experiments and observations. It revealed the presence of a large number of porous cosmic dust particles.


Cosmic dust particles:

About Cosmic dust particles are tiny solid particles that exist in outer space. They are composed of various materials, including minerals, metals, ice, and organic compounds.
Shape From spherical to irregular or fractal-like structures.
Size Ranging from nanometers to micrometres
Composition Amorphous silicate (Forsterite) and amorphous carbon
Found in Cosmic dust particles can be found in different environments, such as interstellar space, planetary systems, and the atmospheres of planets and moons.
Role played They contribute to the formation of stars and planetary systems by providing material for accretion. They also scatter and absorb light, affecting the radiation properties of celestial objects. Additionally, these particles serve as building blocks for the formation of larger objects, such as asteroids, comets, and planets.